i have a presonus firestudio. it has two instrument inputs. From al lthe videos and reading i have done, i thought i coulg take my guitar input into intrument input, then a ts808 vst to what ever ampsim. i have seen and read a few things that say you have to go guitar - di box- preamp then to line in on your recordign interface. Is this the best way? i am wantign to get into reamping as well, if that makes a difference. what i want to do is split a guitar signal, and have one direct track, and one from micing their crap amps. so i can offer a servoice to reamp. IF i do need a di box and preamp, what are cheap ones that work? http://www.presonus.com/products/Studio-Channel i have one of these coming in, will that work for preamp?